Solar Backsheet

SOLAR BACKSHEET excellent resistance to the atmospheric agents, strong barrier to oxygen and humidity, high voltage insulation
SOLAR BACKSHEET

Mechanical Properties:



Tensile-strength
MD(MPa)
≥126
GB/T1040.3-2006
TD(MPa)
≥128
GB/T1040.3-2006

Break elongation
MD(%)
≥130
GB/T1040.3-2006
TD(%)
≥63
GB/T1040.3-2006
Peel strength of layers

N/cm

Can't peelable

GB/T8808-1988
EVA-Peel strength
N/cm
≥30
GB/T8808-1988


Electric property:


Item
Spec,μm
Unit
Value
Standard
Breakdown voltage

——

KV

≥20

ASTMF-1249

Partial discharge
200
VDC
≥712
IEC61730
300
VDC
≥1070
IEC61730
350
VDC
≥1200
IEC61730


Damp Heat Property:


Item

Unit
Value
Standard
Water vapour
Permeability

FPF
g/·d

≤2.0
GB/T1037-
1988
Temperature/
humidity(85°C,
1000h
YI
--
≤6
——
Mechanical strength decrease

%

≤10

——
Layer stripping
N/cm
≥4
GB/T8808
EVA adhesion
N/cm
≥40
GB/T8808

Dimension stability(150°C,
30min)

MD(%)

≤1.0
GB/T10003-
2008

TD(%)

≤0.5
GB/T10003-
2008